04-01-2021 01:35 AM
Hi everyone,
I have a Catalyst 9200.
I set the vlan inside the switch :
vlan 11 -10.11.1.1 255.255.255.0
vlan 91 - 10.19.1.1 255.255.255.0
vlan 92 - 10.19.2.1 255.255.255.0
vlan 93 - 10.19.3.1 255.255.255.0
vlan 250 - 192.168.250.254 255.255.255.0
I set the port 2 vlan 92 dan port 6 vlan 91. I connected pc on both port and set the IP 10.19.1.5 and 10.19.2.5. From my past setting if I want to user inter vlan communication in Cisco 3750, I can just type ip routing and every vlan will be able to communicate with each other. But in 9200, I cannot do that. Can anyone help me for communicating between vlan in 9200.
Thank you
04-01-2021 02:11 AM
If the 3750 have Layer 3 SVI for all the VLAN and working. You want to Cat 9200 same like this, you need to connect Cat 9200 to Cat 3750
you need to have trunk and all the vlan allowed.
Cat 3750 ( all SVI) -----Trunk ----( allowed VLAN) Cat 9200 ---- connected port to respected access vlan, it should work as expected
or post the configuraiton of both.
04-01-2021 02:41 AM
I'm still not connecting to other switch. All of the PC are in on switch.
04-01-2021 06:56 AM
CAt 9200, if they are part of Layer 2 then they should be able to connect each other same vlan, if layer 2 only then inter-vlan have issue.
this required SVI layer 3
04-04-2021 06:46 PM
So how do i activate layer 3 in catalyst 9200? because on switch 3750 I only use ip routing command and i'm able to connect inter vlan.
04-05-2021 01:03 AM
Besides that command you using on Cat 3750 - you need configured cat 9200 switches should have layer 3 SVI interface as below example :
config t
!
vlan 11, 91
!
interface vlan 11
ip address 10.11.1.1 255.255.255.0
!
interface vlan 91
ip address 10.19.1.1 255.255.255.0
!
interface gi 1/0/0
switchport
switchport access vlan 11
switchport mode access
!
interface gi 1/0/1
switchport
switchport access vlan 91
switchport mode access
Connect the devices to respected VLAN with respected Gateway configured, then they able to communicate each other.
04-05-2021 08:27 PM
i already set the vlan and the port but still failed to ping
04-06-2021 08:41 AM
Hi SigitP,
What IOS are you using? The command "ip routing" should work with IOS 16.9.x and above. See the configuration guide at https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9200/software/release/16-9/configuration_guide/rtng/b_169_rtng_9200_cg/b_169_rtng_9200_cg_chapter_010.html
Regards,
Martin
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